♪ ♪ ♪ ♪ if y'all ready to have a good time, rock this with us. come on, come on, do the muscle, do the muscle, do the muscle ♪ ♪ ♪ ♪ hey, hey, hey, rock away, rock away, rock away, rock away, cut. ♪ ♪ ♪ all right, there he is, usher, performing at the kids' inaugural concert here at the washington convention center, the first lady of the united states, and their daughters, and jill biden, very, very cool. they may be there, but we have brianna keeler here, we are so excited, we're going to do a lot, lot of reporting. what is going on?